William demuth



- UNITED STATES- PATENT ()FFICE.

WVILLIAM DEMUTH, OF NEW YORK, N. Y.

TOBACCO-PIPE.

To aZZ whom it may concern:

Be it known that LWILLIAM DEMUTH, a citizen of the United States,residingat New York, in the county and State of New York, have inventednew and useful Improvements in Tobacco-Pipes, of which the following isa specification.

This invention relates to certain improvements in that class of tobaccopipes which are provided with a nicotine chamber below the bowl so thatthe smoke passes from the bowl to the smoke passage in the stem withoutcarrying with it any portion of the condensed nicotine or otherdeleterious residuum.

The peculiar and novel construction of my tobacco pipe is pointed out inthe following specification and claim and illustrated in theaccompanying drawings, in which- Figure 1 represents a longitudinalvertical section of the pipe when its parts are connected ready for use.Fig. 2 is averticalcentral section of the bowl detached. Fig. 3 is alongitudinal vertical section of the stem detached. Fig. 4 is a plan ortop view of the inner portion of the stem. Fig. 5 is an inverted plan ofthe bowl.

In the drawings the letter A designates the bowl of my tobacco pipewhich is made of brier wood or any other material suitable for thepurpose and which has a concave bottom a, the central portion of whichis provided with perforations b.

1 In order to produce a cheap and durable article,I make the bottom a ofsheet metal and provide the same with a flange 10 which engages ashoulder 11 formed in the interior of the bowl at some distance from itslower end. The bottom a is retained in position by a metallic thimble cthe vertical portion of which is provided with a screw-thread 12 whileits bottom flange 13 is secured to the bottom of the bowl by means ofscrews 14, (see Fig. 5.)

It will be readily understood by those skilled in the art and acquaintedwith the trade, that tobacco-pipes in order to be salable, must bebrought into the market at a low price, and

by making the bottoms a of the bowls and the thimbles c of sheet metal,I am enabled to produce these parts with their flanges, screwthreads andperforations in a very expeditious and economical manner and at the sametime SPECIFICATION forming part of Letters Patent No. 521,404, datedJune 12, 1894.

} Application filed December 8, 1893. Serial No. 493,108- (No model.)

obtain a firm and durable connection between the bowl and the stem aswill be presently more fully explained. J

The letter B designates the stem of my tobacco pipe which is providedwith the ordinary rectilinear smoke passage d. The inner end of thissmoke passage communicates with an annular space 6 which is formed inthe butt of the stem and extends around the nicotine chamber f.

When the bowl A is connected to the stem B as seen in Fig. 1, thenicotine chamberfis situated beneath the, perforated concave portion ofthe bottom a so that all the nicotine which escapes from the bowlthrough the perforations in the bottom a collects in the nicotinechamber 'f. At the same time an open space is left between the top edgeof the nicotine chamber and the under surface of the bottom a so thatthe smoke can pass freely from the bowl into the annular space (2 andthence to the smoke passage d. The connection between the bowl and thestem is efiected by means of a sheet metal thimble g which is secured tothe butt of the stem by means of its bottom flange'15 and screws 16(Fig. 4.) and the cylindrical part of which is provided with ascrew-thread 17 adapted to engage the screw-thread 12 of the thimble con the bowl, the construction being as shown so that the screw-threadedpart 17 of the detachable thimble c removably retains the concave sheetmetal bottom a in position slightly above the top edge of thenicotinechamber f to permit the smoke to pass freely to thesmoke-passage in the stem, while the nicotine is collected and retainedin the nicotine chamber.

The concave bottom being made of sheet metal can be readily kept cleanand since the metal is a good conductor of heat said bottom will becomeheated by the burning tobacco,

so that the tobacco by contact with the heated metal is dried andprevented from stopping up the perforations in the bottom. Therectilinear smoke passage d can be readily claimed.

. What I claim as new, and desire to secure by Letters Patent, is

A tobacco-pipe, consisting of a stem provided at its butt with ascrew-threaded portion, a nicotine chamber f and an annular space a andhaving a smoke-passage d leading into the annular space, a detachablebowl having a concave sheet metal bottom I; re- 1 movably seated thereinand provided with perforations at its central portion and a sheet metalthimble c detachably secured to the bowl and having a screw-threadedportion entering the latter and removably retaining the sheet metalbottom in position slightly above

